Hog Island Boa not eating

[SSG]

I always wanted a snake and finally ended up w/ one by default: A guy my wife met at a local store had a 2 yr old hog island boa that he was unable to properly care for. I've had this snake now for about 10 weeks. I have been feeding her every two weeks. She was due to be fed over a week ago, but I forgot before going to visit family in Portland for Xmas. When i got back last Sat I tried to feed her; she refused. I got a fresh frozen snake on Mon; she still refused to eat. Today I went and got a live one; she still wont eat. She seems to be healthy, but to be honest if it isn't real obvious, I probably wouldn't have a clue. She did moult last Thurs, or Friday. Her eyes are clear. She is moving around a lot (more than has been usual). She is drinking. I am at a loss here. Any input would really be appreciated